From e5945c545926093b499a7c882f8d161e5e7e3ec8 Mon Sep 17 00:00:00 2001
From: rex <rexkaneki@gmail.com>
Date: Thu, 15 Aug 2019 15:58:19 +0800
Subject: [PATCH] =?UTF-8?q?[bugfix]=20Tab:=20=E4=BF=AE=E5=A4=8D=E6=9E=81?=
 =?UTF-8?q?=E7=AB=AF=E6=83=85=E5=86=B5=E6=BF=80=E6=B4=BB=E6=80=81=E5=BC=82?=
 =?UTF-8?q?=E5=B8=B8?=
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---
 packages/common/utils.ts | 19 +++++++++----------
 packages/tabs/index.ts   |  3 ++-
 2 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/packages/common/utils.ts b/packages/common/utils.ts
index f9ff1eb2..bfe310ee 100644
--- a/packages/common/utils.ts
+++ b/packages/common/utils.ts
@@ -1,23 +1,22 @@
-function isDef(value: any): boolean {
+export function isDef(value: any): boolean {
   return value !== undefined && value !== null;
 }
 
-function isObj(x: any): boolean {
+export function isObj(x: any): boolean {
   const type = typeof x;
   return x !== null && (type === 'object' || type === 'function');
 }
 
-function isNumber(value) {
+export function isNumber(value) {
   return /^\d+$/.test(value);
 }
 
-function range(num: number, min: number, max: number) {
+export function range(num: number, min: number, max: number) {
   return Math.min(Math.max(num, min), max);
 }
 
-export {
-  isObj,
-  isDef,
-  isNumber,
-  range
-};
+export function nextTick(fn: Function) {
+  setTimeout(() => {
+    fn();
+  }, 1000 / 30);
+}
diff --git a/packages/tabs/index.ts b/packages/tabs/index.ts
index 1732390b..627503b4 100644
--- a/packages/tabs/index.ts
+++ b/packages/tabs/index.ts
@@ -1,6 +1,7 @@
 import { VantComponent } from '../common/component';
 import { touch } from '../mixins/touch';
 import { Weapp } from 'definitions/weapp';
+import { nextTick } from '../common/utils';
 
 type TabItemData = {
   width?: number
@@ -236,7 +237,7 @@ VantComponent({
         }
       });
 
-      this.set({}, () => {
+      nextTick(() => {
         this.setLine();
         this.setTrack();
         this.scrollIntoView();